Lock



E. A, BILL LOCK.

' APPLICATION man FE-B. 14. I920. Patenmd Feb. 15, 1921. v 4 SHEETS-$HEET 1.

INVENTOR ELERT A. HILL ATTORNEY E. A. HILL.

LOCK.

APPLICATION FILED ran. 14. 1920. Patented Feb. 15 1923" 4 SHEETS-SHEET 2.

K (6 -W/fl /7 /fmvramoqe Euzn'r A. Ham;

A. HILL. LOCK.

- APPL'CAT'ON D FEB, 14, 1920.

Patented Feb. 15, 1921.

4 SHEETS-SHEET 3.

4, q) Jig I} 36 a a 56 INVENTOR ELERT A. HILL ATTORNEY E A. HILL.

I LOCK. APPIiICATI ONJZFILED FEB. 14. 1920. Patented Feb. 15, 1921.

I 4SHEETS'-SHEET 4. '41 36' Q 56 INVENTOR ELERT A. HILL,

ATTORNEY outrun stares PATENT OFFICE.

ELERT A. HILL, DE LOS ANGELES, GALIFOFJNIA.

LOCK.

Application filed February 1 1820. Serial No. 358,742.

To all whom it may concern:

Be it known that I, ELERT A. Hint, a ci izen' oft-he United States, residing at Los iirngeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Locks, of which the following is a specification.

This invention relates to a lock and particularly pertains to a lock of the permutation type. y

it is the general object of this invention to provide a. combination or keyless lock.

which is especially applicable for use on hinged closures such as the doors of buildings, safes, lock-boxes, vehicles, and the lilr but which may be adapted for use in any manner in which keyless locks may be employed.

The principal specific object of this invention is to provide a lock of the above character embodying the following features; to wit- First: A selective mechanism for controlling the adapted to be readily placed out of operation to permit the lock being opened either with or without the selective mechanism.

Second: is construction whereby the selective mechanism may be readily set to operate at numerous combinations.

Third: An arrangement whereby the lock may be readily fitted to-be operated as a latch from one side thereof and freely opened from that side when the selective mechanism is either in or out of operation.

Fourthi An assemblage of elements so disposed as to preclude picking of the loci: and to render extremely difficult and remote the possibility ofdiscovering the unlocking combination.

Fifth: A form and arrangement of parts which will permit economical construction and the ready assemblage of the lock and so designed as not to be liable to get out of order but in which repairs and replacements may be easily made.

Qther objects will appear hereinafter.

The preferred embodiment of my invention is illustrated in the accompanying drawings, in which Figure 1 is a view of the lock as seen in vertical section;

Fig. 2 is a detail horizontal section as seen on the line 22 of Fig. 1.

Fig. 3 is a detail in perspective illustrat ing the bolt operating mechanism,

retraction of a locking element Fig. 4: is a detail horizontal section as seen on the line 4-4 of Fig. 1. I

D F 1g. 5 is a detail in plan as seen on line 5 5 of F 1g. 1. 1 1g. 6 1s a detail in perspective as seen in the direction of the'arrow 6 in Fig. 5,

the

illustrating the adjustable catch.

Fig. 7 is a perspective view of the catch as removed. 7

Fig. 8 is a view in perspective showing the exterior of the lock.

Fig. 9 is a detail in section and elevation showing the locking controlling mechanism.

F 10 is a view in vertical section illustrating a modified form of the invention.

Fig. 11 is a detail horizontal sectionas seen on the line 1111 of Fig. 10. Fig. 12 is a detail in erspective as seen n the direction indicated by the arrow 12 in Fig. 11.

Fig.18 is a detail in perspective illustrate mecl'ianism.

Fig. 14: is a detail in perspective showing a means whereby the selective mechanism of the lock may be thrown out of operation in a modified form of the bolt operating so that the lock may be operated independ- V out thereof. b More specifically, 15 indicates the lockmg casing, which may be of any suitable construction but which is here shown as reciprocate in the space between the plates 1 16 and 18 is a bolt 19, which is normally disposed in an advanced position by means of a spring 20 hearing between a. shoulder on the bolt and a guide flange 21 preferably formed on the partition plate and extend in g through the face plate is a rotary-shaft 22, which also projects through the partition plate and extends adjacent to the inner end of'the bolt 19, and which shaft is normally idle and adapted to be rotated without effecting which is designed to be operatively connected to the bolt to retract the latter by means of a bill 23 pivoted on the bolt and having a hook 2d on its outer end adapted to be moved into position to be engaged by a pro jection 25 on the shaft whereby rotation of the shaft will operate, when the hook is engaged by the projection, to retract the bolt in opposition to the spring 20; the pro:

operation of the bolt but jection being designed to ride out of engagement with the hook on continued rotation of the shaft after complete retraction of thebolt, so as to release the latter and permit it to be restored to its normal locking position. The means for moving the bill in and out of its shaft engaging position is here shown as comprising a cam 26 carried by an oscillatory disk 2? and which cam consists of an upwardly projecting bodyon the disk 2? having a longitudinally extending, inclined slot 28 through which a bar 29 on the bill extends; the walls of the slot 28 acting on the bar 29 on oscillation of the disk 27 to raise and lower the bill. The disk 2'? is loosely pivoted on the portion of the shaft 22 extending through the partition plate 18, thus positioning the oscillatory plate in the space between the partition plate and the back plate To effect connection between the cam and the bill the partitionplate is formed with a slot 30 through which the cam extends.

A. spring 31 is here shown as wound aroundthe shaft 22 beneath the partition plate and connected at its ends to the partitionplate and the disk in such manner as to operate to advance the latter in one direction and which direction is such as to cause the cam 26 to elevate the bill; the end of the slot 28 serving on engagement with the bar 29 to limit the advance movement ofthe disk under the action of its springf cans are provided whereby retraction of the disk may be effected by retraction o1 the bolt and comprises a projection 32 extending upwardly from the disk through the slot 30 and disposed in the path of travel of .a downward promotion 33.011 theinner end otthe bolt in such manner that as the bolt is moved inwardly it will engage the projection 32 when the disk is in its advanced position and act to retract thedisk in opposition to the spring 31." Means are provided for temporarily holding the disk in its retracted position, which embodies a catch 3-imounted on some one or more of a series of spring arms arranged beneath the disk and bearing thereagainst; the catch being adapted to engage a-shoulder 34 "formed on' the disk when the latter is in its retracted position. The spring arm 35 carrying the V catch is designed tobe depressed to disengage the catch from the disk to permit the latter to be'advanced under the action of the spring and thereby throw the bill into position to be engaged and retracted by rotation of the shaft, and the means for depressing the spring arm comprisesv a selective mechanism by which a certain device or series ot' devices must be chosen from a mum berrof corresponding devices and operated to. depress the particular spring arm carrying he d sk catch.

The selective mechanism is here shown as reef? e:

comprising a bank of push buttons 36 arranged at suitable intervals around the shaft 22 and projecting through the face plate and partition plate with their inner ends disposed adjacent to the upper face of the disk opposite openings 37 formed in the latter and which openings are arranged. over the spring arms 35;the spring arms and push buttons corresponding in number and which number may be varied as occasion may require. The push buttons 36 are normally held in their outermost position clear the disk by suitable springs, which ar shown in Fig. l as comprising helical springs 38 hearing between the partition plate and a shoulder on thepush button, and illustrated in Fig. 10 as comprising slate springs 39 engaging slots in 'thepush buttons.

it will now be seen that by depressing the push button opposite thespring arm carrythe disk catch,'the inner end of the puss button will'pass through the openilp 37 and depress the spring arm to disene be catch. lit will be noted, however, the opening 3'? b'ecircular, movement he diet will. be prevented even though catch is disengaged therefrom by. reason of the stem'ot the push button projectmg into the opening into engagement with the walls thereof, and that on retraction of the push button the catch will be reengaged so that even though the properpush button be selected ironi the bank, its-depression would not effect operation the-lock. V

Asit maybe desired in some instances that the loclr be set to operate by the depression of a single push button, some one or more of the openings 87 maybe elongated to form slots, as indicated at. 40 in Fig. 1-, which will permit the necessary movement of the disk. V

As a means for increasing the number of combinations necessary for operating the lock, a second bank of push buttons 41 is provided, which is arranged in radial alinement with the push buttons 86 and the stems of which project through the partition plate opposite openings 42 formed in the disk.

The push buttons llare provided for the the stem of the push button is passed therethrough to hold thespring arm depressed, the disk will be advanced by its spring on retraction'of the previouslydenressed button 36. As a meanstor enablingengagement of the outer end of the spring arm by A double row of push buttons is thus provided and two push buttons are arranged opposite each spring arm 85. By providing two or more of the catches 84, depression of more than two push buttons will be necessary in order to effect operation of the lock and by varying the locking positionof the catches, that is by arranging the catches on various combinations of the arms, a large number of lock controlling combinations may be obtained.

As a means for enabling changing'of the particular combination of a lock, a catch 34 is mounted on each spring arm and adapted to be disposed thereon either in position to engage a shoulder 34 on the disk or out of operative relation thereto. ior pose thecatch is formed like a spring cllp, as shown in Fig. 7 and embodies inturned portions 44 adapted to engage the sides 01 the spring member and to extend into a notched portion 45 adjacent to the outer end of the spring member so as to be engage able with the disk or to be disposed in a notched portion 46 adjacent to the inner end of the spring arm in an inoperative position. 7

As a further means of varying the possible combinations of the lock, means are provided for converting either of the elongated openings 42 in the disk into a short opening so that when the stem of a push button 41 is inserted in the opening, the disk will be held against movement. This means is here shown as comprising pair of arms 47 and 48 pivoted on the shaft E2 to extend over the face o'f'the disk, as particularly shown in Fig. 2, and which arms are designed tobe held against movement relative to the diskin any desired adjustedposition byengaging the outer ends of the arms in notches 49 formed in the edge of the disk. In like manner the arms'may be adapted to extend over the elongated slots 40. The possible combinations may be further varied by changing the arrangement of the slots and openings on the disk as occasion may require.

, If desired, the lock may be adaptedto be opened from the inner side thereof independent of the combination controlling mechanismin which event the constructions shown in Figs. 10 and 13 may be employed. Fi 10 shows a connecting rod 50 attached to he bolt 19 and connected to a wrist pin 51 which pur on a shaft 52 extending through the back coverplate l7 and fitted with a knob 53 by which the shaft may be rotated to retract the bolt. In the construction shown in Fig. 13, the bill 23 is formed with a downturned end 54 adapted to,project in front of a pin 55 carried on a sleeve 56 encircling the shaft 22 sleeve .56 being adapted toextend through the rear cover plate and to be rotated to effeet retraction of the bolt.

Asmeans for rendering the lock operable independent of the push buttons, the projection 82 maybe constructed in the form oia pin 32', as shown in Figs. 10 and 14, which pin is reciprocably mounted in the disk and extends through a slot 57 in the back plate and is acted on by a spring 58 to be normally disposed with its upper end projecting in the path of travel of the bolt. 'By withdrawing the pin 32 out of the path of travel of the bolt. this bolt mayberfreely retracted without retracting the. dislnancl'the disk being disposed in its forward position will act through the cam to hold the bill in its uppermost position, so that on rotation of the shaft, the bolt may be retracted; the bar 29 onthe bill being of such length as to permit reciprocable movement of the bolt. A sliding wedge shaped clip 59 maybe mounted on theback plate 17 to engage a head 60 on the stem 32 to hold the latter in its withdrawn position.

The push buttons 36 and 41 are all s urin pressed and normally disposed in their outer positions, and where plate springs are employed, .as shown in rigs. 10 and '1l,the springs 39 engaging the outer row of buttons 41 may be formed on the plate from which the springs 39 are struck. 'By this construction, the use of separate helical springs for each push button is obviated and a construction provided whereby all of the springs required for acting on the push but tons may be struck from a single plate.

In the operation of the invention, when the parts are disposed in their normal position, the bolt will be inits advanced. position, the disk will be retracted, the bill will be in its lowermost position, and the shaft will be free to rotate inoperatively, as shown in Figs. 1 and 10. To open the lock, the

proper button or combinations of buttons depressed to effect release of the disk, as before described, whereupon the sprlng acting thereon will advance the diskto cause the cam to raise the bill in such position that rotation of the shaft will cause the projection thereon to engage the hook so that continued.

and revoluble independent of the latter; the I spring arms, at which point the bill willbe disengaged from the projection on the shaft 'so that the bolt will be .returned to its advanced position by the spring acting thereon.

When it is desired to operate the lock independent or the push buttons, the latter are first operated to cause the disk to move to its advanced position, whereupon the pin 32 will be positioned in the forward'end of the slot 57 and on being withdrawn and engaged by the clip 59 will be disposed out of the path of travel of the bolt, so that onretraction of the bolt the disk will not be retracted there- 7 of the appended claims.

' with. The bill will thenbe normally disposed in its uppermost position and in readiness'to be engaged by the projection on the shaft.

In the application of the invention here shown the-lock casing comprises a door adapted to be hinged in a suitable casing, and as a means for locking the door on its opposite edges,a pair of the bolts 19 is providcdtogether with their operative. connections to the disk, both of which bolts are adapted to be operated in a corresponding manner.

VVhile-l have shown and described a specific embodiment of the invention, I do not limit myself to the exact details of construo tion shown but may employ any construction or'arrangement of the parts and equivalents thereof as mav'come within the scope I claim: V r 1. In a lock, a normally advanced-bolt or latch, a shaft normally free to rotate inoperatively, a doublebank of selective push buttons, one of which is normally inoperative, means controlled by'one of the out-j tons in the other bank for rendering a button operative in the other bank, and means controlled by the last named 1 button for operatively connecting the shaft and bolt whereby turning of the shaft will retract the bolt. 7

'2. In a lock,a normallyadva-nced bolt or latch, a shaft normally free to rotate inoperatively, a double bank of selective push but tons, one of which is normally inoperative, meanscontrolled by one of the buttons in the other bank for rendering a button opera tive in the other bank, and means controlled by the last named button for operatively connecting the shaft and bolt whereby turning of the shaft will retract the bolt, said means adapted on the retraction of the bolt to automatically disconnect the bolt and shaft to restore the bolt to its locking position. 7 V i 3. In a lock, a normally advanced bolt, a rotary shaft, a projection on said shaft, a bill pivoted on saidgbolt adapted to be moved in and out of a position to beengaged by the projection on the shaft and normally out of such position when the bolt is advanced, means for raising and lowering said bill operating means. r

4. Ina lock, a normally advanced bolt a V rotary shaft, a projection on sald shaft, a

bill, a series of selective push buttons controlling said. last named means, means whereby depression-of certain of said push buttons will cause said bill operatingmeans to elevate the bill whereby rotation of the shaft will retract the bolt, andmeans whereby retraction of the bolt will reverse'said bill pivoted on said 'bolt adapted to be moved in and out of a position to be engaged by the projection on the shaft and normally out of such position when the bolt isadvanced, a cam for raising and lowering said bill, an oscillatoryplate carrying said cam, spring means for advancing said: late in one direction to cause the cam to elevate the bill, a series of selective push-buttons for controlling said plate, and meanswhereby depression of certain. of saidbuttons will cause the plate to be advanced by said spring means whereby the cam willoperate to. elevate the bill so that rotation of the shaft will retract the bolt.

- 5. In a look, a normally advanced bolt, a rotary shaft, a projection on said shaft. a bill pivoted on said bolt. adapted to be moved in and outof a position to be engaged by the projection on the shaft and normally out of such position when the bolt is advanced, a cam for raising and lowering said bill,-an oscillatory plate carrying said cam, spring means for advancing said plate in one direction to cause the cam to elevate the bill, a series of selective push buttons for controlling said plate, means whereby legaged by the projection on the shaft and normally out of such position when the bolt is advanced, a cam for raising and lowering said bill, an oscillatory plate carrying said.

cam, spring means for advancing said plate 1110116 direction to cause the-cam to elevate the bill, a series of selective push buttons forcontrolling said plate, means whereby depression of certain of said buttons will cause the plate to be advanced by said spring means whereby the cam will operate to elevate the bill so that rotation of the shaft will retract the bolt, and a projection on said disk positioned to be engaged by said bolt on retraction thereof whereby re-- traction of the bolt will act to restore the disk to its initial position.

Cir

7. In a look, a normally advanced bolt, means for retracting said bolt normally out of connection therewith, an oscillatory disk, a spring for moving said disk-in one direction, means whereby retraction of the bolt will move the disk in the other direction, a catch for holding the disk under spring tension independent of the bolt, selective means for disengaging said catch to permit the disk to advance, and means operated by advance movement of the disk for positioning the bolt and its retractive means in operative relation to each other.

8. In a look, a normally advanced bolt, means for retracting said bolt normally out of connection therewith, an oscillatory disk, a spring for moving said disk in one direction, means whereby retraction of the bolt will move the disk in the other direction, a catch for holding the disk under spring tension independent of the bolt, selective means for disengaging said catch to permit the disk to advance, means operated by advance movement of the disk for positioning the bolt andits retractive means in operative relation to each other, and means whereby the disk may be thrown out of operative relation to the bolt.

9. In a look, a normally advanced bolt, means for retracting said bolt normally out of connection therewith, an oscillatory disk; a spring for moving said disk in one direction, means whereby retraction of the bolt will move the disk in the other direction, a catch for holding the disk under spring tension independent of the bolt, selective means for disengaging said catch to permit the disk to advance, means operated by ad vance movement of the disk for positioning the bolt and its retractive means in operative relation to each other, and means whereby the bolt may be retracted independent of the first named retractive means.

10. In a look, a movable disk having an opening therein, an arm extending beneath said opening, means on said arm normally operating to hold the disk against movement, means operating through said opening to depress the arm and release the disk, means for advancing the disk, a bolt, normally inoperative means for" advancing said bolt, and means whereby advance movement of the disk will render the bolt advancing means operative.

11. In lock, a movable disk having an opening therein, an arm extending beneath said opening, means on said arm normally operating to hold the disk against movement, means operating through said opening to depress the arm and release the disk, said means embodying a normally retracted push button stem so arranged that on depression thereof the arm will be depressed, means for advancing the disk, a bolt, normally inoperative means for advancing said bolt, and means whereby advance movement of the disk will render the bolt advancing means operative.

12.-In alock, a'movabledisk having an opening therein, an arm extending beneath said opening, means on said arm normally operating to hold the disk against movement, means operating through said opening to depress the arm and release the disk, said means embodying a normally retracted push button stem so arranged that on depression thereof the arm will be depressed and a second push button stem so arranged relative to said arm that on being depressed it will engage the arm only when the latter is in a depressed position, means for advancing the disk, a bolt, normally inoperative means for advancing said bolt, and means whereby advance movement of the disk will render the bolt advancing means operative.

13. In a look, a pair of reciprocal spring pressed and normally retracted push button stems, and a spring arm extending beneath one of said stems and terminating to one side of the path of travel of the other stem and adapted on being depressed toproject beneath said last named stem in position to be engaged by the latter.

14:. In a look, a spring arm fixed at its inner end, a pushbutton stem arranged over said arm and adapted on depression to depress said arm, and a second push button stem having a path of travel normally passing said arm, said arm being adapted on depression thereof to be advanced into the path of travel of said second stem.

15. In a look, a spring arm fixed at its inner end, a push button stem arranged over said arm and adapted on depression to depress said arm, a second push button stem having a path of travel normally passing said arm, said arm being adapted on depression thereof to be advanced into the the disk on depression of the arm, and lock mechanism controlled by said arm.

16. In a look, a spring arm fixed at its inner end, a push button stem arranged over said arm and adapted on depression to depress said arm, a second push button stem having a path of travel normally passing said arm, said arm being adapted on depression thereof to be advanced into the path of travel of said second stem, a movable disk, a spring for advancing said disk in one direction, a catch on "said arm engageable with said disk to hold the latter in a retracted position and adapted to release the disk on depression of the arm, and lock mechanism controlled by said disk.

17. In a lock, a spring arm fixed at its inner end, a push button stem arranged over said arm and adapted on depresssion to depress said arm. a second push button stem having a path of travel normally passpression thereof to be advanced into the pathof travel oi said second stem, a BMW- able disk, aspiring for advancing said disk in one direction, a catch on said arm engageable With said disk to hold the latter in a retracted position and adapted to remesses lease the disk on depression of the aim, lock mechanism controlled by said disk, and means whereby depression of the first 10 named stem will lock the disk against movement.

ELERT A. HILL. 

